Keystone-Loening Commuter

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K-84 Commuter
Keystone-Loening Commuter.jpg
Role Flying boat
National origin United States
Manufacturer Keystone-Loening
First flight 1929
Unit cost

The Keystone-Loening K-84 Commuter was a single-engine closed cabin 4 place biplane amphibious flying boat built by Keystone-Loening. It was powered by a 300 hp Wright Whirlwind engine mounted between the wings with the propeller just ahead of the windscreen. It was first produced in 1929.

This airplane was featured as a model/bank by Texaco, #8 in a series "Wings of Texaco" of historic aircraft used by the company.

Keystone-Loening K-84, NC-63K c/n 305, "Kruzof" presently resides at Greg Herrick's Golden Wings Flying Museum in Minneapolis, Minnesota. Wing components are under restoration with the aircraft fuselage to follow. A second K-84, N374V c/n 313 "The Old Patches" is at the Alaska Aviation Heritage Museum, in Anchorage, Alaska and is also under restoration.


Data from American airplanes: Keystone[1]

General characteristics

  • Crew: 1
  • Capacity: 3 passengers / 1,223 lb (555 kg)
  • Length: 32 ft 5 in (9.88 m)
  • Wingspan: 36 ft (11 m) (some sources 40 ft (12 m))
  • Powerplant: 1 × Wright J-6-7 7-cyl. air-cooled radial piston engine, 300 hp (220 kW) -330 hp (250 kW)


  • Maximum speed: 115 mph (185 km/h; 100 kn)
  • Cruise speed: 90 mph (145 km/h; 78 kn)
  • Stall speed: 50 mph (80 km/h; 43 kn)
  • Range: 506 mi; 815 km (440 nmi)
  • Service ceiling: 12,000 ft (3,700 m)


  1. ^ Eckland, K.O. (2008-08-15). "American airplanes: Keystone". Retrieved 2011-02-12. 

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